A case study of twin bored tunnelling under mixed-face soil - Bendemeer MRT station project (Downtown Line 3), Singapore
|
|
- Robyn Small
- 6 years ago
- Views:
Transcription
1 Japanese Geotechnical Society Special Publication The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering A case study of twin bored tunnelling under mixed-face soil - Bendemeer MRT station project (Downtown Line 3), Singapore Chee Wee Ong i), Jiong Poh Ee ii), Thiri Su iii), Kwet Yew Yong iv) and Ariaratnam Kulaindran v) i) Managing Director, ONE SMART Engineering Pte Ltd, Singapore & Malaysia ii) Technical Director, Tritech Consultants Pte Ltd, Singapore iii) Ph.D Student, National University of Singapore, Singapore iv) Professor, National University of Singapore, Singapore v) Deputy Director, Land Transport Authority, Singapore ABSTRACT The Bendemeer Station project is part of the construction of MRT Downtown Line 3 (DTL-3) in Singapore, under Contract C933. High variation in geological condition along the alignment was encountered during the tunneling works in this project. The transitions from Old Alluvium soil towards the soft soils of Kallang Formation create the challenging mixed-face soil condition at the tunnel face. This sudden change of tunnelling medium creates the difficulties to control face pressure and over excavation which can cause substantial ground loss and movements. This paper mainly focuses on the ground responses caused by twin bored tunnelling under mixed-face soil condition and the implementation of building protection measures to the existing late 19 th & early 20 th centuries shophouses which the tunnelhad undercrossed in mixed-face soil condition. Keyworks: kallang formation, old alluvium, mixed face, bored tunnels 1 INTRODUCTION The Downtown Line Stage 3 (DTL3) will be an underground Mass Rapid Transit (MRT) System extending from Downtown Line Stage 1 (DTL1) Chinatown Station and run through MacPherson, Bedok Reservoir, Tampines and ending at the East West Line (EWL) Expo Station. It consists of 16 stations and a total route length of about 21 km. Contract C933 comprises the construction and completion of Bendemeer Station, cut-and-cover Cross-over box, and twin bored tunnels between Bendemeer and Geylang Bahru Station, and also between Bendemeer and Jalan Besar Station which undercrossed several shophouses and existing structures at some stretches. A total of four Earth Pressure Balanced (EPB) Tunnel Boring Machines (TBM) were used to mine the 4km of tunnel drives. The contract also includes the construction and completion of two escape shafts connecting to the main bored tunnels at Allenby Road and by the Kallang River. Figure 1 shows the C933 Overall Project Site Plan. Contract C933 has also been highlighted as a case study project by Ong et al (2014) and Poea et al (2014). 2 BORED TUNNELS FROM BENDEMEER TO JALAN BESAR STATION The 6.35m external diameter twin bored tunnels were launched from a launch shaft, formed at the west end of the Bendemeer Station, to the east end of Jalan Besar Station. Along the tunnels route, the twin tunnels undercrossed or were in close proximity to existing shophouses, many of these shophouses are of two to four storey that were built in the late 19 th & early 20 th centuries. These old shophouses coupled with the soft soil or mixed-faced soil condition at the Old Alluvium (OA) and Marine Clay (MC) transition poses several construction challenges during the tunnelling operations. The tunnels were constructed using 1.4m wide, 275mm thick precast steel fibre reinforced concrete (SFRC) lining segments. 7 segments and 1 key formed each ring. The segments were connected using straight bolts of 25mm diameter. The adoption of SFRC segmental tunnel lining in a MRT tunnel is a first in Southeast Asia and it was also awarded the Singapore Concrete Institute (SCI) Excellence Award 2013 as it improved productivity in segment production of up to 25%. For the Tunnel alignment, the Bukit Panjang and Expo Bound tunnels were launched parallel to each other. After approximately 220m, the Expo Bound 176
2 tunnel was positioned at an elevation higher than Bukit Panjang Bound tunnel, both tunnels were unstacked into parallel position approximately 200m before docking into Jalan Besar Station. Figure 2 shows the location plan of C933 bored tunnel alignment from Bendemeer to Jalan Besar Station. Figure 1. C933 Overall Project Site Plan Figure 3. Geological profile along C933 tunnel drives from Bendemeer to Jalan Besar Station Figure 2. Location plan of C933 Bored Tunnel alignment from Bendemeer to Jalan Besar Station 2.1 Ground condition and geological profile Figure 3 shows the assessed Geological profile along the C933 tunnel drives from Bendemeer to Jalan Besar Station. The Bukit Panjang Bound Tunnel axis levels typically varies between 27m to 39m below the existing ground level while the Expo Bound Tunnel axis levels typically falls between 22m to 28m below the existing ground level. Both the Bukit Panjang Bound and Expo Bound TBMs were launched into good Old Alluvium (OA) soil with Standard Penetration Test (SPT) N greater than 100 blow counts for a distance of approximately 730m before encountering Kallang Formation (Marine Clay) with thickness of up to 42m, for the remaining 320m. Challenging mixed-face soil condition exists at the OA to Kallang Formation (Marine Clay) transition. 3 BORED TUNNELLING IN MIXED-FACE SOIL CONDITION AT THE OLD ALLUVIUM TO KALLANG FORMATION TRANSITION WITH STACKED TUNNELS The first transition of Old Alluvium to Kallang Formation (Marine Clay) was located approximately at 730m away from Bendemeer station west launching shaft. Tunnel alignment layout plan and the geological profile of mixed-face soil area are shown in Figure 4 and Figure 5 respectively. Figure 4. Plan of Stacked Twin Tunnels located in proximity to existing Shophouses 177
3 Figure 5. Sectional View of Stacked Tunnels in Mixed- Face Soil Condition Generally, tunnelling in mixed-face soil can trigger a relatively higher amount of settlement when compare with uniform Old Alluvium even with a proper control of TBM operating parameters. The total settlement after combined twin tunnelling in pure OA condition is approximately about 5mm with the recorded volume loss less than 0.5%. Settlement tends to increase when the tunnel drives approach the mixed face area. Despite the tunnel face still in OA, total settlement of 10mm and volume loss of 1.1% were recorded during twin tunnel driving under available OA cover above tunnel crown getting thinner due to thicker Kallang Formation (Marine Clay). Nevertheless, the recorded volume loss recorded during the twin tunnel driving inside OA is still within the LTA Civil design criteria (LTA, 2010) of 2%.The expected soil conditions encountered at tunnel face is also shown in Figure 6. 0m 5m 17m F1 EXPO LG3114 BUKIT PANJANG RX RX FILL KALLANG FORMATION Tunnel Centre Line Tunnel Centre Line OLD ALLUVIUM Figure 6. Expected Soil Conditions encountered at Tunnel Face The development of settlement over time when the TBMs passed through the mixed-face soil condition is accessed in Figure 7. The monitoring results of ground settlement marker located above tunnel vertical axis and the rod extensometer at depths 5m and 17m are plotted together for review and study. As can be seen, the settlement results show similar trends between surface and subsurface settlements. When the tunnel entered the transition zone, settlement increased from 5mm to 14mm although the face pressure was maintained at 30% higher than hydrostatic pressure. As shown in Figure 15, additional settlement of 6mm and total of 20mm settlement are recorded after advancing both tunnels. The occurrence of a sharp drop is likely due to the contribution of Fluvial Sand (F1) layer in mixed-face, which usually shows drained behaviour giving a quick response to settlements. It is, therefore, worth to note that the F1 soil content plays an important role on the effect of settlement behaviour due to tunnelling. It can also be seen that the immediate settlement tends to stabilize after 34m (5D, where D is diameter of tunnel) away from the tunnel for this case. This shows that the settlement in mixed face tunnelling takes longer time to stabilize as compared to that reported 20m in Cham (2009). Review Levels: LG3114 = 47mm RX = 77mm RX = 51mm Figure 7. Settlement versus time in Mixed-Face Soil Area The measured transverse surface settlement troughs, plotted together with Gaussian distribution curves is shown in Figure 8. 2% volume loss calculated based on fitted Gaussian curve is recorded when the Bukit Panjang bound tunnel (BP) passed through the mixed soil location. Approximate volume loss of 0.6% is recorded when the Expo tunnel bound (EX) was driven under the Marine Clay and Fluvial Clay (F2) location. Since the tunnel alignments are located at highly built-up area, it is expected that the surface settlement trends are affected by the presence of adjacent foundations and structures as compared to Gaussian trough under green field condition. Larger settlements are observed below the shallow foundations whereas the presence of pile foundation resulted in shallower settlement points. Increase in settlements under shallow foundations can be due to the surcharge loading coming from the building. On the other hand, decrease in settlement shows the stiffening effect of the presence of pile foundation under the existing building. 178
4 2.0% 0.6% Figure 8. Transverse Surface Settlement Trough at Mixed-Face Soil Area 03 Adequate Muck Reconciliation Volume 04 Primary Grouting around the annular gap between the extrados of segment and soil CP : 0.1% (OA & Mixed Soil) CP: 2% (F1 soil) i) Muck Skip: Excavation volume measurement at every 300mm jack stroke advance. ii) Belt Weighter: To Check the Trend for Soil Weight for any change in soil type Simultaneous Primary grouting by 4 ports at each quadrant with both proper volume & minimum Pressure (~1.0 bar above TBM Face Pressure at axis level) to be achieved When driving the TBM from competent OA soil into mixed-face soil condition at the OA and Kallang Formation (Marine Clay) transition, several engineering measures were implemented to mitigate the risk of excessive settlement especially due to the presence of thick Fluvial Sand layer (F1) which may caused the TBM screw conveyor to lose the soil plug and therefore failed to maintain the required Face Pressure. Usage of proper soil conditioning in terms of foam and polymer through Trials Test is therefore essential to ensure that the discharge of F1 sand from the TBM screw conveyer is well controlled. The TBMs in C933 are also equipped with an air purge port installed at the bulkhead near to the TBM crown. This safety feature allows possible pressurised air bubble accumulated at the top of the TBM Muck chamber to be released and subsequently the space is filled back with Bentonite/Muck. This is to prevent any potential sudden ingress of F1 Sand into the TBM Muck Chamber as the TBM exits from the competent OA soil into MC. A Summary List of the TBM Key Operating Parameters at Mixed-Face of OA/MC(F1) is shown in Table 1. Table 1. TBM Key Operating Parameters in Mixed-face Soil Condition S/No. TBM Key Operating Parameters at Mixed Face of OA/MC(F1) 01 Adequate Face Pressure 02 Proper Soil conditioning Criteria Minimum Face Pressure to be above Hydrostatic Water Pressure i) Foam : FIR: 25-40% FER: 6 CF: 2.5% ii) Diluted Polymer : PIR : 5-10% 05 Annular Bentonite Injection around shield To maintain Bentonite around the TBM shield at a pressure above the TBM Face Pressure at axis level minus 20kPa Abbreviations : FIR Foam Injection Ratio; Foam Expansion Ratio; CF Concentration of Foam; PIR Polymer Injection Ratio; CP Concentration of Polymer Equally of importance is the Emergency preparedness in terms of standby resources eg. Grouting rigs, traffic diversion equipments which were ready to handle various envisage emergency scenarios eg. Suspected subsurface cavity, slurry/foam leaks to surface, excessive settlement and sinkholes etc. During the actual tunnelling in mixedface, surface watchman was also deployed to closely monitor for any abnormality on the surface and will report to the TBM central control so that immediate action can be taken to address any incident. Tunnelling in Mixed-Face Condition at the transition between OA to MC poses a challenging task, with the presence of Fluvial Sand (F1) content leading an important role on the rate and magnitude of settlement behaviour due to tunnelling. Proper site investigations should be carried out to locate the mixed-face and to determine the engineering properties of the various soil layers. TBM Key Operating Parameters needs to be well designed and most importantly properly executed so as to ensure the volume loss due to tunnelling is controlled to the minimum. 4 TUNNELLING UNDER 18 UNITS OF SHOPHOUSES WITH MIXED-FACE SOIL CONDITION Along the Bukit Panjang Tunnel Route, it is required to undercoss 18 units of shophouses with mixed-soil condition as shown in Figure 9. Many of these Shophouses are of two to four storey that were built in the late 19 th & early 20 th centuries, special attention was therefore given to the assessment of the pre-existing condition of these Buildings, the impact 179
5 to the buildings due to bored tunneling works and the implementation of building protection as required prior to tunneling works (Poea et al, 2014). This section will address some of the Building Protection measures implemented as part of the risk mitigation measures for tunneling under the shophouses. As shown in Figure 9, the Bukit Panjang Tunnel entered the row of 18 units of shophouses at an oblique angle and undercrossed the shophouses adjacent to the five-footway façade. In order to allow settlement to occur more uniformly along the fivefootway façade and to minimise the differential settlement between the façade column and the main building column, vertical props with spreader beams were installed to support the beam along the five footway façade as shown in Figure 10 and Figure 11. In addition, 3 façade columns with pre-existing quality issues were wrapped with steel jacket and were connected to the main building using a steel frame as shown in Figure 10 so as to mitigate the risk of excessive settlement of the façade column during tunneling, Lastly, at the location where the tunnel emerged out of the shophouses, raker struts were installed to support the Gable Wall as shown in Figure 12. With the various Building Protection measures installed coupled with proper TBM Key Operating Parameters during tunneling in mixed face as mentioned in Section 3, the Bukit Panjang TBM Face Pressure was maintained at 53% higher than hydrostatic pressure and the Building settlement registered a range of 11mm to 24mm after the TBM undercrossed the row of 18 units of shophouses which majority are founded on shallow foundation. Steel Jacking to existing Five foot way Façade Column Steel Frame connected to Main Building Vertical Props and Spreader Beams Figure 10. Steel Jacking and Steel Frame to connect existing Five-footway Column to the Main Building Vertical Props Bukit Panjang Tunnel Expo Tunnel Figure 11. Front Elevation View of Vertical Props installed to support beam along five-foot way facade of Shophouses Figure 9. Tunnelling In Mixed-face soil condition at the OA and Marine Clay Transition 180
6 Raker Props to support Gable Wall Bukit Panjang Tunnel Figure 12. Raker Support at End Wall Shophouse 5 CONCLUSIONS Tunnelling in Mixed Face Condition at the transition between Old Alluvium to Marine Clay poses a challenging task, with the presence of Fluvial Sand content leading an important role on the rate and magnitude of settlement behaviour due to tunnelling. Proper site investigations should be carried out to locate the mixed-face and to determine the engineering properties of the various soil layers. TBM Key Operating Parameters needs to be well designed and most important is properly executed so as to ensure the volume loss due to tunnelling is controlled to the minimum. Excavation for the Bored Tunnels between Bendemeer MRT Station to Jalan Besar MRT Station was successfully completed without causing significant impact to the surrounding structures. The successful completion was due to the detailed and prudent planning, design and execution of the Bored tunnelling works by the various project parties members. Figure 13. A section of the completed SFRC Tunnel ready for track installation REFERENCES Ong, C.W., Thiri Su, Yong, K.Y., Kulaindran Ariaratnam, (2014): Understanding of soil responses due to tunnelling-3d numerical analysis and case study of Bendemeer Station (DTL-3) Singapore. Proceedings of the ISSMGE Technical Committee 207 International Conference on Geotechnical Engineering June 2014, Saint Petersburg. J. Poea, H. Bernard, G. Lee, C.Y. Ng,(2014): Protection of Old Shophouses due to MRT Excavation & Tunnelling Works on Downtown Line Stage 3 C9333. Proceedings of Underground Singapore 2014, session 6.5 pp33. LTA (2010): Civil design criteria for road and rail transit systems, Land Transport Authority, Singapore.
LARGE DIAMETER PIPE ROOF BOX EXCAVATION FOR PASSENGER LINKWAY TUNNEL
Submission for Hulme Prize 2017 LARGE DIAMETER PIPE ROOF BOX EXCAVATION FOR PASSENGER LINKWAY TUNNEL F. Saffiyah BADURDEEN 1, G. T. SENTHILNATH 2, 1 Ed. Zublin AG Singapore 2 Geoconsult Asia Singapore
More informationLogistics of Limited Space Urban Tunnelling at Singapore s Mega Metro
Logistics of Limited Space Urban Tunnelling at Singapore s Mega Metro S. Smading The Robbins Company, Singapore ABSTRACT: Today s mega metro projects are using multiple TBMs in difficult ground, short
More informationExperts in tunneling with Tunnel Boring Machines
www.eurohinca.com www.terratest.es Experts in tunneling with Tunnel Boring Machines info@eurohinca.com EUROHINCA Europea de Hincas Teledirigidas, S.A., EUROHINCA, was incorporated in 1996 for the execution
More informationCase Histories of Bored Tunnelling Below Buildings in Singapore Downtown Line
Case Histories of Bored Tunnelling Below Buildings in Singapore Downtown Line Goh Kok Hun, Land Transport Authority, Singapore; email: goh_kok_hun@lta.gov.sg Ng Shie Shyang Gerald, Land Transport Authority,
More informationFrom Colonia Jardín to Cuatro Vientos
60 METROSUR Line 10, Section 1A Contractor: From Colonia Jardín to Cuatro Vientos The extension of Line 10 is underway, with two sections currently being built. The first, which is discussed here, was
More informationDeveloped countries require a modern infrastructure Roads Railways Power Communications Water Wastewater
Introduction to Soft Ground Tunnelling in Urban Environment Dr. Noppadol Phienwej Geotechnical and Geo-environmental environmental Engineering School of Engineering and Technology Asian Institute of Technology
More informationChing Guan Kee ABSTRACT
Japanese Geotechnical Society Special Publication The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering Effects of base grouting and deep cement mixing on deep foundation bored
More informationThe Effect of mixed foundations on the response of some buildings to excavation
The Effect of mixed foundations on the response of some buildings to excavation J.N. Shirlaw Golder Associates (Singapore) Pte Ltd D. Wen Land Transport Authority of Singapore R.A. Algeo CJ Associates,
More information4D grouting pressure model of a bored tunnel in 3D Tunnel
4D grouting pressure model of a bored tunnel in 3D Tunnel F.J.M. Hoefsloot & A. Verweij, Fugro Ingenieursbureau B.V., The Netherlands INTRODUCTION For some ten years TBM-techniques have been used to construct
More information4.5 GEOTECHNICAL, SUBSURFACE, AND SEISMIC HAZARDS
4.5 GEOTECHNICAL, SUBSURFACE, AND SEISMIC HAZARDS This section discusses the geology, soils, seismicity, hazardous materials, and subsurface obstructions along Flower Street, and evaluates their potential
More information4D grouting pressure model PLAXIS
4D grouting pressure model PLAXIS F.J.M. Hoefsloot & A. Verweij Fugro Ingenieursbureau B.V., Leidschendam, The Netherlands ABSTRACT: Bored tunnels are about to be constructed in the urban areas of Amsterdam
More informationGeneral Behavior of Braced Excavation in Bukit Timah Granite Residual Soils: a Case Study
General Behavior of Braced Excavation in Bukit Timah Granite Residual Soils: a Case Study Wengang Zhang abc *, a Researcher, Key Laboratory of New Technology for Construction of Cities in Mountain Area
More informationRisk Management of the Restoration of Shanghai Metro Line 4
ISGSR2007 First International Symposium on Geotechnical Safety & Risk Oct. 18~19, 2007 Shanghai Tongji University, China Risk Management of the Restoration of Shanghai Metro Line 4 X. P. Yu, W. J. Zhu
More informationCROSSRAIL INFORMATION PAPER D8 TUNNEL CONSTRUCTON METHODOLOGY
CROSSRAIL INFORMATION PAPER TUNNEL CONSTRUCTON METHODOLOGY This paper sets out the proposed Crossrail tunnel construction strategy and methodology. It will be of particular relevance to those in the vicinity
More informationD7: TUNNEL CONSTRUCTION AND METHODOLOGY
HIGH SPEED TWO INFORMATION PAPER D7: TUNNEL CONSTRUCTION AND METHODOLOGY This paper outlines the proposed tunnelling methodology. It will be of particular interest to those potentially affected by the
More informationConcrete Pipe Jacking
Concrete Pipe Jacking Technical Brief CPAA Introduction Concrete pipe jacking is a method of installing pipelines without disrupting existing surface facilities or activities. Pipe jacking has been used
More informationConstruction of Rail Tunnels Using Slurry Machines on Circle Line Stage 3, Singapore
Construction of Rail Tunnels Using Slurry Machines on Circle Line Stage 3, Singapore Seah Tiong Peng 1, Kulaindran Ariaratnam 1, Ow Chun Nam 1, 1 Land Transport Authority, Singapore ABSTRACT The Land Transport
More informationProf. Eng. Daniele PEILA
Course in Tunnelling and Tunnel Boring Machine Kurs w zakresie drążenia tuneli oraz maszyny drążącej TUNNEL FACE STABILITY WITH MECHANIZED TUNNELING GENERAL CONCEPTS Prof. Eng. Daniele PEILA 0 When tunneling
More informationAppendix C. Gallery Place Chinatown Station Structural Assessment
Appendix C Gallery Place Chinatown Station Structural Assessment Washington Metropolitan Area Transit Authority February 2018 Gallery Place Chinatown Station Passageway RFI Contents APPENDIX C 1.0 Introduction:
More informationChallenges in Designing the Underpinning & Strengthening for Existing MRT Viaduct Structure to Facilitate Construction of DTL3 Expo Station
Challenges in Designing the Underpinning & Strengthening for Existing MRT Viaduct Structure to Facilitate Construction of DTL3 Expo Station Abstract Neo Chee Wei Meinhardt Infrastructure Pte Ltd, Singapore
More informationPerformance of high capacity jack-in pile for high-rise building with preboring in weathered sedimentary rock formation
Performance of high capacity jack-in pile for high-rise building with preboring in weathered sedimentary rock formation Chee-Meng, Chow i), Jason A.H. Lim ii) and Yean-Chin, Tan iii) i) Director, G&P Geotechnics
More information4th International Engineering and Construction Conference - July 28, 2006
4th International Engineering and Construction Conference - July 28, 2006 BOX-JACKING - A USEFUL CONSTRUCTION TOOL By Anthony Lynn, Berkeley Engineering Company, Inc. Box jacking is jacking a large precast
More information2 Technology of closed-face tunnelling machines
2 Technology of closed-face tunnelling machines 2.1 Machine types There are two basic types of pressurised closed-face tunnelling systems slurry tunnelling machines (STMs) and earth pressure balance machines
More informationMicrotunnelling. Building infrastructures and power supply systems underground, while life above continues unaffected.
Microtunnelling Building infrastructures and power supply systems underground, while life above continues unaffected. 2 Comprehensive Microtunnelling Solutions A reliably functioning infrastructure which
More informationKing County Uses Trenchless Methods to Construct a Large Siphon Under Seattle s Ship Canal
North American Society for Trenchless Technology (NASTT) NASTT s 2013 No-Dig Show Sacramento, California March 3-7, 2013 TA-T1-03 King County Uses Trenchless Methods to Construct a Large Siphon Under Seattle
More informationSingapore Case Histories on Performance of Piles Subjected to Tunnelling-Induced Soil Movement
Singapore Case Histories on Performance of Piles Subjected to Tunnelling-Induced Soil Movement Cham Wee Meng, Jacobs Services SEA Private Limited, Singapore; email: chamweemeng@yahoo.com.sg ABSTRACT: In
More informationPrinciples for Tunnel Design
20th to 21st April 2017 Kuala Lumpur Tunnel Design Philosophy Bored Tunnel, Segmental Lining Design 20th to 21st April 2017 Kuala Lumpur Disclaimer a) The speakers are presenting their own personal views
More informationGround Response to Tunnel Construction for the Jakarta MRT
Ground Response to Tunnel Construction for the Jakarta Hendarto Jamie Standing Department of Civil and Environmental Engineering Imperial College London London SW7 2AZ Presented in the 9th International
More informationPipejacking Tunnel Boring Machines TBMs. Michael Frenke, LOVAT Inc.
Pipejacking Tunnel Boring Machines TBMs Michael Frenke, LOVAT Inc. Pipejacking Tunnel Boring Machines (TBMs( TBMs) Introduction Pipejacking Sequence TBM Design Features Types of Jacking Pipe Pipejacking
More informationTBM Selection and Specification
By Bradford F. Townsend and Paul E. Jenkins Date: 13 June 2009 TBM Selection - Challenges to be met TBM Technology Auxiliary Measures and Backup New Developments Summary of Selection Process Procurements
More informationMarina Bay Sands Hotel Arch 631 Kayla Brittany Maria Michelle
Marina Bay Sands Hotel Arch 631 Kayla Brittany Maria Michelle Overall Information Location: Singapore Date of Completion: 2010 Cost: $5.7 billion Architect: Moshe Safdie Executive Architect: Aedas, Pte
More informationConcrete Pipe Jacking
Concrete Pipe Jacking Concrete Pipe Association of Australasia ACN 007 067 656 TECHNICAL BULLETIN CONTENTS ABSTRACT 1 INTRODUCTION 2 METHOD OF INSTALLATION 3 CONCRETE PIPE DESIGN 4 CONCRETE PIPE JOINT
More informationMonitoring Earth Pressure Balance Tunnels in Los Angeles
Monitoring Earth Pressure Balance Tunnels in Los Angeles Thomas M. Saczynski 1, M ASCE P.E., Michael Pearce 2, M ASCE, P.E., G.E., and Amanda Elioff 3, M ASCE, P.E. 1 Sr. Manager, KBR,790 Colorado Blvd
More informationUK POWER NETWORKS BATTERSEA CABLE TUNNEL: POWERING A RENAISSANCE AT BATTERSEA S ICONIC POWER STATION
UK POWER NETWORKS BATTERSEA CABLE TUNNEL: POWERING A RENAISSANCE AT BATTERSEA S ICONIC POWER STATION Gerard Quigg CEng MICE Senior Civil Engineer COWI UK Ltd. Table of Contents 1 Introduction... 1 2 Ground
More informationDIFFICULT GROUND SOLUTIONS:
Tunnelling April/May 2016 www.tunnellingjournal.com journal The international journal for the tunnelling industry SEE PAGE 6 SEE PAGE 12 SEE PAGE 27 WORLD NEWS MONITOR PROGRESS CUTTER CARE HIGHLIGHTS FROM
More informationFEATURES & BENEFITS OF ARMTEC TUNNEL LINER PLATE
TUNNEL LINER PLATE FEATURES & BENEFITS OF ARMTEC TUNNEL LINER PLATE SAFE ECONOMICAL VERSATILE SIMPLE EASY TO HANDLE READILY AVAILABLE All underground work can be undertaken from within the assembled shell.
More informationSEISMIC RETROFIT OF AN UNDERGROUND RESERVOIR. Robert Small 1, Rob Jameson 2
ABSTRACT SEISMIC RETROFIT OF AN UNDERGROUND RESERVOIR Robert Small 1, Rob Jameson 2 Seismic Upgrade of the University Mound Reservoir North Basin included 542 micropiles with 1335 KN (300 kip) design capacity
More informationCase History: Value Engineering of Driven H-Piles for Slope Stability on the Missouri River
DEEP FOUNDATIONS 207 Case History: Value Engineering of Driven H-Piles for Slope Stability on the Missouri River W. Robert Thompson, III, 1 M.ASCE, P.E., Jeffrey R. Hill, 2 M.ASCE, P.E., and J. Erik Loehr,
More informationPipe Jacking/Microtunnelling. Dr. Mark Knight. Centre for Advancement of Trenchless Technologies (CATT) University of Waterloo.
Pipe Jacking/Microtunnelling Dr. Mark Knight Centre for Advancement of Trenchless Technologies (CATT) University of Waterloo 1 New Installations New Installations Non-Steering Methods Steering Methods
More informationThe use of micropiles as a form of underpinning of existing commercial buildings development of IKEA hall in Gdańsk
dr inż. Marcin Blockus INGEO Sp. z o.o. Mobile: +48 505 24 38 37 E-mail: blockus@ingeo.com.pl The use of micropiles as a form of underpinning of existing commercial buildings development of IKEA hall in
More informationPresented by: Frank Guyamier
FTBA Orlando Tuesday, March 20, 2012 Presented by: Frank Guyamier Project Engineer P3 PROJECT PARTNERS Public Sponsors 90% Equity Partner Design/Build Contractor 10% Equity Partner VMS Operator Federal
More informationRock Tunnel Engineering INTRODUCTION. Tunnel a hole in the ground to provide for desired movement or as mobility channel.
Rock Tunnel Engineering INTRODUCTION Tunnel a hole in the ground to provide for desired movement or as mobility channel. Serves as highway, railroad, pedestrian passageway, water conveyance, waste water
More informationRelationship between twin tunnels distance and surface subsidence in soft ground of Tabriz Metro - Iran
University of Wollongong Research Online Coal Operators' Conference Faculty of Engineering and Information Sciences 2012 Relationship between twin tunnels distance and surface subsidence in soft ground
More informationWorkshop Brief Notes on: Construction of Pipe Roof and Support System
Workshop Brief Notes on: Construction of Pipe Roof and Support System Kim H. CHENG, BE (Hons, Monash),DHE( Delft),PE, FIEM, MIES, MISTT, FINDSTT,Tunnel Services,, C& V Summary: The notes herein illustrated
More informationDIGEST. Issue 6 : July December In this Issue:
G&P Newsletter of G&P Professionals Group DIGEST Issue 6 : July December 2013 In this Issue: ELECTRIFIED DOUBLE TRACK RAILWAY PROJECT Ground Treatment Design for 200km Railway Track - Ipoh to Padang Besar
More informationSettlement due to tunnelling on the CTRL London Tunnels
Settlement due to tunnelling on the CTRL London Tunnels K.H. Bowers & N.A. Moss Rail Link Engineering/Arup, London, UK ABSTRACT: Between late and the spring of 4 approximately 6 km of 8.15 m excavated
More information2 Support of the cavity and settlement Support of the face Natural support Mechanical support...
Table of Contents The authors... VII Foreword to the 2nd Edition... IX 1 Introduction... 1 1.1 Basic principles and terms... 3 1.2 Types of tunnel boring machine according to DAUB... 5 1.2.1 Categories
More information6 Preliminary Assessment of Construction Method and Constructability Issues
6 Preliminary Assessment of Construction Method and Constructability Issues 6.1 Construction Approach Appendix C includes conceptual designs of the alternatives discussed below. Generally, the conceptual
More informationQatar Rail Doha Metro
Qatar Rail Doha Metro Dr. Ing. Markus Demmler Stakeholders 11 6 JVs with international companies Project Management Consultants About Qatar Rail Following its establishment in 2011, Qatar Rail is leading
More informationHow we would build the proposed storm relief sewer
Counters Creek storm relief sewer How we would build the proposed storm relief sewer We would build the proposed Counters Creek storm relief sewer using the most advanced construction methods and we would
More informationInstrumentation and Data Management for the Zurich Zimmerberg Railway Tunnel Construction Daniel Naterop Solexperts Ltd.
Instrumentation and Data Management for the Zurich Zimmerberg Railway Tunnel Construction Daniel Naterop Solexperts Ltd., Switzerland 1. Introduction The 9.4 km Zimmerberg base tunnel is an important part
More informationPerformance review of a pipe jacking project in Hong Kong
Geotechnical Aspects of Underground Construction in Soft Ground Ng, Huang & Liu (eds) 2009 Taylor & Francis Group, London, ISBN 978-0-415-48475-6 Performance review of a pipe jacking project in Hong Kong
More informationNorthport Berth 3 design and construction monitoring
Proc. 18 th NZGS Geotechnical Symposium on Soil-Structure Interaction. Ed. CY Chin, Auckland Lucy Coe, Nicola Ridgley, Do Van Toan Beca Infrastructure Limited, Auckland, NZ Keywords: retaining wall, deflections,
More informationBehaviour of Various Support Systems for Deep Excavations, Changi Airport Underground MRT Station
RTS Conference, Singapore, 03 Behaviour of Various Support Systems for Deep Excavations, Changi Airport Underground MRT Station C. Murugamoorthy Land Transport Authority, Singapore C.M. Kho, B.G. Vaidya
More informationSEMMERING BASE TUNNEL LOGISTIC CHALLENGES
SEMMERING BASE TUNNEL LOGISTIC CHALLENGES Dipl.-Ing. Michael Proprenter ic consulenten ZT GmbH Vienna, Austria Mail: m.proprenter@ic-group.org Dipl.-Ing. Oliver K. Wagner ÖBB - Austrian Federal Railways
More informationHudson River Tunnels, Mega Projects, and Risk A Designer s Perspective
Purdue Geotechnical Society Workshop Digging Deep April 8, 2011 Hudson River Tunnels, Mega Projects, and Risk A Designer s Perspective David Chapman, P.E. Lachel & Associates, Inc. Morristown, NJ Hudson
More informationPAUL ZICK, PE NORTH SHORE CONSTRUCTORS JV
NORTH SHORE CONNECTOR TUNNELS AND STATION SHELL LIGHT RAIL PROJECT PAUL ZICK, PE NORTH SHORE CONSTRUCTORS JV North Shore Connector Alignment 7300 lf Extension to existing 25 mile system 18 Contracts $435
More informationSEMINAR ON PILE LOAD TEST IN SINGAPORE DIFFERENT METHODS AND GOOD PRACTICES LOAD TESTING USING KENTLEDGE AND REACTION PILE METHOD
SEMINAR ON PILE LOAD TEST IN SINGAPORE DIFFERENT METHODS AND GOOD PRACTICES 31 Oct. 2014, RAMADA HOTEL, SINGAPORE LOAD TESTING USING KENTLEDGE AND REACTION PILE METHOD Foo Hee Kang, Managing Director Resource
More informationConstruction Planning, Equipment, and Methods PILES AND PILE-DRIVING EQUIPMENT
CHAPTER Construction Planning, Equipment, and Methods PILES AND PILE-DRIVING EQUIPMENT Sixth Edition A. J. Clark School of Engineering Department of Civil and Environmental Engineering 19 By Dr. Ibrahim
More informationCC1602 Microtunneling
CC1602 Microtunneling H.H. Sheikh Sultan Tower (0) Floor Corniche Street Abu Dhabi U.A.E www.ictd.ae rachel@ictd.ae Course Introduction: Significant technical advances and increases in the utilization
More informationIAC Presentation, August 17, 2017 Ground Movement Impact Assessment. Trevor O Shannessy
IAC Presentation, August 17, 2017 Ground Movement Impact Assessment Trevor O Shannessy Overview Construction Engineering Scoping requirements Existing conditions summary Assessment approach Key considerations
More informationBack Analyses and Performance of Semi Top-Down Basement Excavation of 11m Deep in Sandy Alluvial Deposits overlying Kenny Hill Formation in Malaysia
Back Analyses and Performance of Semi Top-Down Basement Excavation of 11m Deep in Sandy Alluvial Deposits overlying Kenny Hill Formation in Malaysia S. S. Liew & S. J. Gan G&P Geotechnics Sdn Bhd, Wisma
More information03/12/2012. JSPS/CSIC international symposium on Smart Infrastructure and Construction. Business opportunities for Smart Infrastructure
JSPS/CSIC international symposium on Smart Infrastructure and Construction Business opportunities for Smart Infrastructure 13 November 2012-10:30 11:00 Crossrail, CSIC and using instrumentation to make
More informationModular Course on Foundations and Earth retaining Structures for Building and Infrastructure Projects 9th March 2000
The Institution of Engineers of Ireland Modular Course on Foundations and Earth retaining Structures for Building and Infrastructure Projects 9th March 2000 MODULE 4 RETAINING STRUCTURES DEEP EXCAVATIONS
More informationUniversità degli Studi di Roma Tor Vergata CIVIL ENGINEERING AND COMPUTER SCIENCE DEPARTMENT TERC TUNNELLING ENGINEERING RESEARCH CENTRE
Università degli Studi di Roma Tor Vergata CIVIL ENGINEERING AND COMPUTER SCIENCE DEPARTMENT TECHNICAL REPORT TESTS ON PRECAST TUNNEL SEGMENT IN CONCRETE REINFORCED WITH STEEL FIBERS (DRAMIX 4D 80/60BG)
More informationDesign and construction of NATM underground station tunnel by using the forepoling method in difficult conditions for Athens Metro
Design and construction of NATM underground station tunnel by using the forepoling method in difficult conditions for Athens Metro P. Kontothanassis, N. Koronakis, A. Karinas & S. Massinas Omikron Kappa
More informationAdvantages / Disadvantages of Piling Methods. Continuous Flight Auger (CFA)
Advantages / Disadvantages of Piling Methods In this Piling Advice Note we will explore the advantages and disadvantages of differing types of piling methods. Continuous Flight Auger (CFA) The pile is
More informationInnovation in Instrumented Test Piles in Malaysia: Application of Global Strain Extensometer (GloStrExt) Method for Bored Piles
Innovation in Instrumented Test Piles in Malaysia: Application of Global Strain Extensometer (GloStrExt) Method for Bored Piles... By: Dr H.M. Abdul Aziz bin K.M Hanifah 1 and Lee Sieng Kai 2 (GIEM) 1
More informationBREAKTHROUGH AND BURIAL OF TBMS ON THE BRISBANE AIRPORT LINK PROJECT
BREAKTHROUGH AND BURIAL OF TBMS ON THE BRISBANE AIRPORT LINK PROJECT Russell Connors 1 ABSTRACT The Airport Link Project (APL) was constructed in the Northern Suburbs of Brisbane and connects the Central
More informationADDRESS: 122 LIPSCOMBE ROAD, DECEPTION BAY, QLD,
WWW.TUFFOZYCONCRETESLEEPERS.COM.AU ADDRESS: 122 LIPSCOMBE ROAD, DECEPTION BAY, QLD, 4508 EMAIL: SALESTUFFOZYCONCRETESLEEPERS@HOTMAIL.COM PHONE: 0405233099 1.0 INTRODUCTION 1 2.0 DESIGN ASSUMPTIONS 1 2.1
More informationForensics by Freezing
Forensics by Freezing Joseph A. Sopko, Ph.D., P.E., M.ASCE Moretrench American Corporation, 100 Stickle Avenue, Rockaway, NJ 07866, e-mail: jasopko@moretrench.com ABSTRACT Subsurface conditions in water
More informationPump Station Excavation
Pump Station Excavation SPONSORED BY THE KIEWIT CORPORATION A capstone project for the The Department of Civil & Environmental Engineering in The Ira A. Fulton College of Engineering and Technology Brigham
More informationPipe Jacking. Japan Sewage Works Association
Pipe Jacking Japan Sewage Works Association June, 2013 1 Pipe Jacking Yosuke Matsumiya y.matsumiya@ngsk.or.jp Japan Sewage Works Association Suisui Bldg. 2-10-12 Uchikanda, Chiyodaku Tokyo 101-0047 Japan,
More informationEOSC 547: Tunnelling & Underground Design
EOSC 547: Tunnelling & Underground Design Topic 4: Tunnelling Methods Soft Ground TBMs 1 of 41 Tunnelling Grad Class (2017) Dr. Erik Eberhardt Excavation Methods Selection of a tunnelling system (i.e.
More informationTunnels. Introduction in Shield tunnelling Pipe jacking & tunnelling Slurry & hydroshield Slurry versus EPB Principles of support pressure
Tunnels content of the lecture 1st Hour Tunnels Immersed tunnels Comparison Bored Tunnels (short) Land tunnels 2nd Hour Introduction in Shield tunnelling Pipe jacking & tunnelling Slurry & hydroshield
More informationSHAFT CONSTRUCTION SECANT PILE
by Rob jameson and eric lindquist feature story SECANT PILE SHAFT CONSTRUCTION Modern Tools and Techniques Allow Excavation to Depths Previously Considered Infeasible By Rob Jameson and Eric Lindquist
More informationAssalamualaikum & Good Morning (May All Of You Gain A Better Understanding)
Assalamualaikum & Good Morning (May All Of You Gain A Better Understanding) Always Try To Do The Best In Your Life TYPES OF FOUNDATION TYPES OF FOUNDATION a) Shallow Foundation System i) Spread Foundation
More informationFOR HIGHWAY TUNNEL GALLERIA SPARVO.
HERRENKNECHT EPB SHIELD S-574 FOR HIGHWAY TUNNEL GALLERIA SPARVO. PRODUCT PORTFOLIO OF HERRENKNECHT GROUP. MECHANIZED TUNNELLING TECHNOLOGY. STEEP TUNNELLING. St. Petersburg 30 downhill EPB Shield Access
More information2008 Underground Construction Technology International Conference & Exhibition, Cobb County Galleria Center, Atlanta, GA - January
Program: Title: Author: 2008 Underground Construction Technology International Conference & Exhibition, Cobb County Galleria Center, Atlanta, GA - January 29-31. Successful Technology for Utility Installations
More informationTUNNEL LINER PLATE INTRODUCTION GENERAL APPLICATIONS CHAPTER 11
CHAPTER 11 INTRODUCTION The open-trench method of placing underground conduits is commonly used on new construction of culverts, sewers and underpasses. Interference with traffic, as well as inconvenience
More informationSettlement assessment of running tunnels a generic approach
Settlement assessment of running tunnels a generic approach D.I. Harris & J.N. Franzius Geotechnical Consulting Group, London, UK ABSTRACT: This paper introduces a new generic approach to the second stage
More informationSPECIAL CONDITIONS FOR PIPE JACKING (PJ) October, 2006
Michigan Department Of Transportation 3703C (11/06) 1 Materials 1.1 Pipe SPECIAL CONDITIONS FOR PIPE JACKING (PJ) October, 2006 Page 1 of 5 The type of pipe used for the pipe jacking method shall be capable
More informationSPECIAL CONDITIONS FOR MICROTUNNELING (MT) October, 2006
Michigan Department Of Transportation 3703F (11/06) SPECIAL CONDITIONS FOR MICROTUNNELING (MT) October, 2006 Page 1 of 5 1 Materials 1.1 Pipe (a) Pipe shall be specifically designed and certified for microtunneling
More informationTRENCHLESS CONSTRUCTION (BORING, JACKING, AND TUNNELING)
PART 1 - GENERAL TRENCHLESS CONSTRUCTION (BORING, JACKING, AND TUNNELING) 1.01 SECTION INCLUDES A. Trenchless Installation of Carrier Pipe with Casing Pipe B. Trenchless Installation of Carrier Pipe without
More informationDESIGN OF TEMPLETON OVERPASS FOR THE CANADA LINE. Yulin Gao, M.A.Sc., P.Eng., SNC-Lavalin Inc. Samson Chan, M.Eng.,P.Eng., SNC-Lavain Inc.
DESIGN OF TEMPLETON OVERPASS FOR THE CANADA LINE Yulin Gao, M.A.Sc., P.Eng., SNC-Lavalin Inc. Samson Chan, M.Eng.,P.Eng., SNC-Lavain Inc. Roger Woodhead, PhD, P.Eng., SNC-Lavain Inc. Paper prepared for
More informationAssessment of Tunnel Stability with Geotechnical Monitoring
Assessment of Tunnel Stability with Geotechnical Monitoring G. Güngör, A. Şirin, S. Kiziroglu, H.D. Altuntas, A. Durukan General Directorate of Turkish Highways, Ankara, Turkey T. Solak Temelsu International
More informationNumerical Analysis of Pipe Roof Reinforcement in Soft Ground Tunnelling
Numerical Analysis of Pipe Roof Reinforcement in Soft Ground Tunnelling W.L.Tan and P.G. Ranjith School of Civil & Environmental Engineering, Nanyang Technological University, Singapore 639798 Phone: 65-67905267,
More informationDesign Data 4. Jacking Concrete Pipe
Design Data 4 Jacking Concrete Pipe FOREWORD Jacking or tunneling concrete pipe is an increasingly important construction method for installing concrete pipelines without interrupting commerce, or disturbing
More informationUse of Jet Grouting in Challenging Infrastructure Renewal Situations in Hawaii
Use of Jet Grouting in Challenging Infrastructure Renewal Situations in Hawaii Reyn Hashiro 1, P.E., M. ASCE, Devin Nakayama 2, P.E. M. ASCE, and James Kwong 3, Ph.D., P.E., M. ASCE 1 Associate, Yogi Kwong
More informationCombined Pile Foundation System for a Residential Complex
Combined Pile Foundation System for a Residential Complex Alvin K.M. Lam, Geotechnical Engineer, Ove Arup & Partners Hong Kong Limited, Hong Kong, China; email: alvin.lam@arup.com Daman D.M. Lee, Civil
More informationContents. Introduction
Liner Plates 2 Contents Introduction...3 Fields of Application...4 Main Advantages...4 System Components...4 System Description...4 Specifications...5 Characteristics...10 Liner Plate Support Types...10
More informationDesign and development of a decline shaft through poorly consolidated Kalahari deposits at Ghaghoo Diamond Mine.
Design and development of a decline shaft through poorly consolidated Kalahari deposits at Ghaghoo Diamond Mine. Alan Naismith 1, Dr Graham Howell 2, Howard Marsden 3. 1 SRK; 2 SRK; 3 Petra Diamonds (previously,
More informationShield TBM risk model based on Bayesian networks applicable in design stage
Shield TBM risk model based on Bayesian networks applicable in design stage *Heeyoung Chung 1), In-Mo Lee 2) and Jeongjun Park 3) 1), 2) School of Civil, Environmental and Architectural Engineering, Korea
More informationSTANDARD SPECIFICATIONS SECTION TUNNELING. A. Section includes requirements for constructing tunnels 48-inch and larger diameter.
STANDARD SPECIFICATIONS SECTION 02420 TUNNELING PART 1 GENERAL 1.1 DESCRIPTION A. Section includes requirements for constructing tunnels 48-inch and larger diameter. 1.2 DEFINITIONS A. Carrier Pipe: Sewer
More informationSabah Shawkat Cabinet of Structural Engineering 2017
3.9 Concrete Foundations A foundation is a integral part of the structure which transfer the load of the superstructure to the soil without excessive settlement. A foundation is that member which provides
More informationREHABILITATION OF THE LANGETENTAL FLOOD DIVERSION TUNNEL
REHABILITATION OF THE LANGETENTAL FLOOD DIVERSION TUNNEL Roger BREMEN Engineer of the Hydraulic Department Lombardi Engineering Limited Via Simen 19 CH 6648 Minusio Switzerland ABSTRACT: A 7.5 km long
More informationGround Freezing for Tunnel, Shafts, and Adits
Ground Freezing for Tunnel, Shafts, and Adits Joseph A. Sopko, Adam Curry Moretrench American Corporation Bianca Messina Skanska USA Civil Stephen Njoloma McMillen Jacobs Associates ABSTRACT Construction
More informationMitigation of the effects induced by shallow tunneling in urban environment: The use of compensation grouting in the underground Line B1 works in Rome
Geotechnical Aspects of Underground Construction in Soft Ground Viggiani (ed) 2012 Taylor & Francis Group, London, ISBN 978-0-415-68367-8 Mitigation of the effects induced by shallow tunneling in urban
More informationINNOVATIVE PILE EXTRACTION TECHNIQUE OF CFA PILES FOR THE NEW HARBOR BRIDGE PROJECT
INNOVATIVE PILE EXTRACTION TECHNIQUE OF CFA PILES FOR THE NEW HARBOR BRIDGE PROJECT Tracy Brettmann, P.E., D.GE, Vice President, A. H. Beck Foundation Company, Houston, Texas, (713) 413-3800, tracy.brettmann@ahbeck.com
More informationRemote Monitoring of Gauge Cutter Wear in Pressurized Face Tunneling
Remote Monitoring of Gauge Cutter Wear in Pressurized Face Tunneling Glen Frank, JayDee Contractors, Inc., Seattle, WA Ehsan Alavi Gharahbagh, The Pennsylvania State University, University Park, PA Michael
More information